Valve: E3 surprise isn't Half-Life 2: Episode 3

Last week, Valve announced the cancellation of a press conference dedicated to Portal 2, which was scheduled around the time of E3 at the LA Regal Theater. In exchange, the company promised to share a surprise during the festivities, but specifics were – and still are – scant. With details lacking, folks have been doing the only thing they can do: postulate.